Not really, there are rigid categorisation of trademarks (Nice Classification). All software is in Class 42 (https://www.wipo.int/classifications/nice/nclpub/en

Not really, there are rigid categorisation of trademarks (Nice Classification). All software is in Class 42 (https://www.wipo.int/classifications/nice/nclpub/en/fr/?basic_numbers=show&class_number=42&explanatory_notes=show&lang=enfr&menulang=en&mode=flat&notion=&pagination=no&version=20220101 https://www.wipo.int/classifications/nice/nclpub/en/fr/?basi...) so Valve would actually have standing here. PS: Nice here refers to the French town (compare to Berne Convention, Geneva Convention, Treaty of Paris), not the common meaning in English.